The paper constructed a BP neural network on the basis of supervised learning,and built a model of extraction of gas disaster information by training the BP neural network.

The parameters of the language model can be estimated through the supervised learning or unsupervised learning.

According to the theories and practices on learning styles in China and abroad,the authors try to design a questionaire that applies to Chinese college students to test their learning styles,and then put it into practice to guide students learning,hoping to perfect the guidance of learning and improve students ability to monitor their learning.

As the most fundamental method for study reform, learning guidance for college students is an effective approach to facilitate teaching reform.

Based on the investigation and analysis in learning environment, learning situation, and learning guidance situation of N university L faculty students, We find that the main learning problems of L faculty students are strong utilitarian of learning concept, weak self-learning ability and the learning willpower, and existence the crisis in major interests.

The author discussed in detail the various approaches for the Word Sense Disambiguation WSD: the approach for selection of commonly-used sense, the approach using POS for disambiguation, selectional restriction based approach, robust WSD, supervised learning approach, bootstrapping approach, unsupervised approach, dictionary-based approach.